A method and system for evaluating carbon dioxide exchange capacity at the water-air interface of a lake

A technology of carbon dioxide and exchange volume, applied in climate change adaptation, design optimization/simulation, instruments, etc., can solve the problems of large estimation deviation and poor evaluation flexibility, and achieve the effect of high precision, strong physical mechanism and low investment

Active Publication Date: 2022-05-17
CHINA THREE GORGES CORPORATION
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Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of relatively large estimation deviation and poor evaluation flexibility of the exchange rate of carbon dioxide at the water-air interface in the prior art, thereby providing a method for evaluating the exchange rate of carbon dioxide at the water-air interface of lakes and system

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  • A method and system for evaluating carbon dioxide exchange capacity at the water-air interface of a lake
  • A method and system for evaluating carbon dioxide exchange capacity at the water-air interface of a lake
  • A method and system for evaluating carbon dioxide exchange capacity at the water-air interface of a lake

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[0030] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The present invention provides a method and system for assessing the amount of carbon dioxide exchange at the lake water-air interface, the method comprising: obtaining lake bottom elevation data and multiple driving data, and inputting the lake bottom elevation data and multiple driving data into preset surface water-ground water In the coupled simulation model, the water surface area of ​​the lake is calculated; multiple sets of climate model data are obtained, and multiple sets of climate model data are input into the flux block formula to calculate the carbon dioxide flux at the water-air interface; according to the lake water surface area and the water-air interface The carbon dioxide flux was calculated to obtain the carbon dioxide exchange volume at the lake water-air interface. This method realizes the simulation and description of the physical distribution of the lake, fully considers the water balance items of the lake, and through the coupling with the climate model, quantitatively evaluates the exchange of carbon dioxide at the water-air interface of the lake. Compared with the traditional method, it has more advantages It has the characteristics of low investment, high precision and strong physical mechanism.

Description

technical field [0001] The invention relates to the field of carbon flux estimation and calculation, in particular to a method and system for evaluating carbon dioxide exchange capacity at a lake water-air interface. Background technique [0002] Lakes are one of the most widely distributed water bodies on land. They are an important part of the terrestrial hydrosphere and are closely related to the natural carbon-water cycle. Driven by both hydrodynamics and water management, the lake's water level is constantly changing, and flooded land periodically emerges from the water in an area known as the sink zone. The continuous change of the sinking area is also accompanied by the change of the lake water surface area, which has a significant impact on the estimation of the lake water-air interface carbon dioxide exchange rate. One of the important aspects is that the calculation of the lake water-air interface carbon dioxide exchange rate must Consider changes in the water sur...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F111/10G06F113/08
CPCG06F30/20G06F2111/10G06F2113/08Y02A10/40
Inventor 张博曹岩刘志武戴会超杨恒丁相毅梁犁丽蒋定国
Owner CHINA THREE GORGES CORPORATION
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